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By Chris Edmondson
Section 712 of the International Plumbing Code (IPC), Section 712, places a burden on the shoulders of engineers. You have to design the sewage pit or basin that collects the sewage and houses the pump(s). To do that properly, you need to address the following questions:
How big should the basin be? According to Section 712.3.2, “The sump pit shall be no less than 18
By Chris Edmondson
Sometimes codes just aren’t very helpful. Take Section 712.4.2 of the International Plumbing Code (IPC) and its insight into the selecting flow capacity for a sewage and ejector pumps:
712.4.2 Capacity. A sewage pump or sewage ejector shall have the capacity and head for the application requirements.
(Thanks, IPC….)
Clearly, having the proper flow is necessary to efficiently discharge wastewater from a commercial plumbing system – but how do you determine the flow rate for the sewage system so you can properly size the pump?
By Jerry Timm
When the laws and characteristics of steam are respected, fewer operating problems occur and unnecessary costs are minimized.
Steam is an invisible gas created by adding heat energy to water. It is liquid water changed to its gaseous state.
By Mike Sneary
Superheated steam occurs when heat energy is added to saturated steam that is not in contact with liquid. When the heat energy is added, the steam temperature is increased above the saturation temperature. Superheated steam is referred to as ‘dry’ steam meaning it contains no water droplets. This effect can also occur when the pressure of saturated steam is reduced through a pressure control valve.
By Chad Edmondson
As we bring our first series about air management in a hydronic system to a close, we’re going to revisit tanks – not what they do (we’ve already covered that) but what we call them. Specifically, we want to address whether or not there is a difference between what some industry professionals call an “expansion tank” and what others call a “compression tank.”
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